Spliceable belt



Sept. 19, 1944. w. R. PERRY SPLICEABLE BELT Filed June 21, 1941 l IINVENTOR. WzZlzau1Z.P;/ m

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ATTOZNEYJ Patented Sept. 19, 1944 l Application jaiieli, 194i,- s am.299314 The present invention relates to :power trans mission belts, andmore particularly to th at general. type of belts which comprisesabod'y, ribbon, or strand having considerable tensile strength butrelatively little lateralrigidity, and aseries ity mounted upon saidbody in; longitudinally spacedlparallel relation. .Belts of thischarac-- of transverse blocks of considerable rigidter are primarilyintended for use in association with V-pulleys, or with. one V-pulleyand one fiat-faced pulley; and the functionof the blocks,

of course, is f to effect adrivin connection with the ang'ularly relatedv faces offthe V-pulleys and to. transmit force between those pulleyfaces and th e longitudinally strong strand or web of the body portion.a p v Broadly, the primary object of the present invention isto improve:belts-of the characterabove.

described. One phase of the invention .isjthe provision of such a beltinwhich each block is an integral unit completely enveloping the -beltbody orstra-nd and secured to; the same without the use of extraneousfasteninglrneans More particularly, such a block is preferably formed ofhardened moldable material, being molde'difi place upon the strand whilein plastic condition, and subsequently hardened in any suitable manner,so that it will adhere to its position on the strand. v l

Another phase of the invention has to do with the provision of splicingmeans during the forv mation of the body strand. According to thepresent invention, the body strand consists of a continuous piece ofmaterial arranged a. plurality of parallel runs merging with each otherin loops at the opposite ends of the belt, the loops at one end of thebelt being registrable with the loops at the'other end of the belt,Where= by means may be threaded through loops at one end of the belt andregistering loops at the other end of the belt to form a splice. -Stillanother phase of the invention has to :do with the provision of areinforcing blockfor association with the splicing means. A, Furtherobjects oi. the invention will appear as the description proceeds. s I v7 To the accomplishment of the above andrelated objects, my inventionmay .be' embodied in the forms illustrated in. the accompanying drawing,attention being called to the'faet, however, that the drawing isillustrative only, and that change may be made in the speeine oiistifidtions illustrated and described, so long as the scope of the appendedclaims is notviol'ated.

,all'el to the first pass abbut constructed in----aceordance with thepresent ine om. -..L y I x J v 'Fi-g. a transverse section through-a;splice blockunit; associable with the form oi ebelt illus= 3 line 3-3of 2 ofthearrows; I

Fig. 4 i5 9, iragmentary plan view of the splice block ofFigvz; M 1 v pj 5 is afrag'mentarycplan view of a different form of belt constructedin accordance with H substantially on the is v a section taken andlooking in the direction thepresent invention an. e t n sociable. withthe belt oi Fig. 5, parts" being broken away forclarity oilil'l ustrationn I -.Fig. 7.;is a section takensubst'antially on the line 7-4 ofFig. 6 and-looking in the direction ofthe arrows 1 Fig {8 "s n end.elevation of the. splice i ra me ta l ng d a ee through the interlocked.ends of a further form of belt constructed-in accordance with thepresent-invention;;and j .1 V Ei 10.15" a tr 'ns'verse section throug'ha stiflener block associated with a belt of the characterillustrated'iniigs. *1 or 5.- 1 3 Referring more "particularly to Figs; l-to 4, -the ofa splice' block unit asblock ektndffi'ofii apoint between the rods H andI2 audible-passed around the rod ll to form a loop HI. Ittheneiitends ina second run I02 parfill from the rod to the rod 12-,- beingpassdaboutthe'rod l2 to form aloop 121.. It then ei'itends; as run 1113,back to the .rod lll, -alid is-lpassed about saidrod to forth amepuz';thence continuingas run Hi l to fierce l2 as looip I72; andso on untila. fififiiclfit 'w'idth has been, produced, as

at the 166p H3 about the rod II, whence the cord. extends as run 105 toand-about the rod 2 wee -mop [2 3, and thence, as run-I116Yback to apoint betweemtwo rods 1 and J2. 'I'he free ends or therunsi-lll'l ana'IUB mayte secur a in pnee'maay-desire inaiinnarid if desired, the V cpeted f r 'fibbo'ri Jmay..:n sw be treated N red' iiate'rial whine the'gjdja i; meager-1e. l

'It ivill be "seiiiuiat at atti e' otereutiii e1 reference numeral Hlindicates generally a belt maybe made of any esir e' 'cord e t l ke-1111 mdlicin be secured thereto by any suitable clamping .1 means; butpreferably stiffener blocks willbe applied to the belt body as integralunits} each completely enveloping a sectionpf'the belt body; Anysuitable moldable andghardenable material.

may be used; and I have found hard rubber to be one adaptable materialfor thi purpose. The,

rubber, in moldable conditionymay be' applied to the belt body in thedesired form and subsequent;;,

ly treated to cause it to harden sufficiently to withstand the.longitudinal compressive 'ft" r c es"-'-tt which it will be subjected inuse. If desiredifric tion" material '50 may be applied to each blockbefore the hardening process; or such'i'n'aterial may be suitablyapplied to the end "and inner'surfaces 'after hardenihg 'oftheblockmaterial; In Fig. 10, 'I have illustrated 'theftransv'er'secontour o such a block before the application of the above-mentionedfriction material;

The belt may nowbe removed from th rold ssl I and "I2; and the l oqpsjof' the 121' -series brought into inter-digitating' relation with theloops of the HI series; whereafter a membenlkmaygbe passed throughtheflregistering eyes of all of the loops of both series tojcompletea'splice; 'I h'e member l4 may beiof "any desired material.- I

In order to reinforcefthe *splica, a block unit I5 i preferablyassociated therewith; The unit l5 consists of an outer member comprisinga transverse beam l6 carrying at its opposite encls surfaces l1 and I8which are: allochirally angularly relatedto a medianplane perpendicularto the plane of the belt bodyi-sd'thatfsaid surfaces will cooperateoperatively with the angular sur-' facesofa I 1 secured to the surfacesl1 and 18. Theunit l5 ."mat'eriaLf such as wood, metal, plastics, andthe The surfaces lT andfla continuefbelowthe beam l5 as legs I9 andfllwhichfare transversely separated to provide as 'cket zlforf the reception of the belt; splice. The surfaces l1 and-l3 are joined by aheat-dissipatingi' fin 22, thereby defining an outwardly opening socket;The

V-pulley, Friction material '59. will he *The spliceblock 32 may splicedloops of both series a reintroducedinto f the'socket 2|, nd; thereaftera 'bottom plate '21 is associatedjwiththe upperl blo'ck unit.Preferably, the legs lflf and 2,0 are formectin.theinad iacent surfaces,withfgrooves1 23 and 2 4 f adapted to receive tongues 25 and 26 on; theopposite ends of the plate 2T; and a plurality of bolts 28 pass throughthefbeam il 6, between the spliced loops of the belt; body, heintoithreaded fbores' n formedin the plate 21; wherebythe plate 21 maybe drawn up toclamp'the splicegin' place in the socketrzl.

The orm of beltiillust rated l igs'ii'itofg his; prisesajb'ody 31'!similar to the body l0,'and l1 kewise made up of a plurality pfsubstantially parallel runs of'a continuous; longitudinally stressed theoperator willmake usejof two ;'series q'fgllpstanding pins 3|. Thefirstrun"offcord 3 0 l ;will.

19 bf ries; andthence into of pins and around the first pin of oneseries to form a loop 3| I; thence, in a parallel run 302, to and aroundthe first pin of the other series to form a loop 321 (see Fig. 6).Thence, the cord returns as run 303 to pass about the second pin of thefirst series to form loop 3l2; and thence back to the other series ofpins. This is continued until run 304 passes about the last pin 3i to.form 10013 313, whence the cord returns, as run-305;.toiaipointintermediate the two series of pins. Blocks l3 may now be applied to thebelt body in the manner above described; whereafter,

the belt may be lifted off the twoseries of pins 3 I. It will be seenthat the loops of this form of belt .lie:in planes'ssubstantiallyparallel to the [lathe cf jthebeltbody. To form a splice, with this formoftbelt, the loops at one end of the belt are brought into registeringoverlapping relation 'withthe loops of the other end of the belt, only011911001) of the 3 series registering with each loop of the 32! series,in the manner clearly illustratedinFigsgfi, Land 8, v

"EA splice blockfunit32 foruse withthis type of 'belt'comprisfes anupper block 33 formed with angularly 'rel'atedsurfaces 34 and 35 andacon nectingbeam 3B which may be centrally relieved as, at 3'l to reduceweight; and a mating lower unit 3 ,3'*formed at'its ends to definecontinuationsjof the surface 34' and 35, A plurality of upstanding pins38 is carried by on of the abovementioned'units, while thecther of saidunit is formd with pin receiving sockets 39. Each of the pins 38 pa'ssesthrough theregistering eyes of one the 3H] seriesand one loop of the 320'seits socket 39; and the two units are clamped together-by a pluralityof bolts 40 carried by the upper unit and threadedly engaging sockets inthe'lower unit. 7

- beformed of any desired material; such as wood; metal, or plastics;andiifdesiredythe pins 38 may be either integral with, or

t securedto, 'elther one of the units 33 and 33'," while the other'ofsaid'units will be socketed for the receptionfof the projecting ends ofsaid Q illustrates a simplified form of splice. According to this formof the invention, the belt compriseslabodyg lt of cords or the like anda cover 41 of rubber or similar material. Vulcanized to be integralwithethe cover 41 of an end 4|; of the belt is'a transversely arrangedprojection 42 extending out ofthe plane of the belt; and anji"tegraltransverse block" 43 extending oppositely outof the plane of the beltand formed to"pro'vide a seat 44. The other end All] of the belt is'provided with an integrally vulcanized transverse block' 430 of rubberor similar material which-'i'sffo rnied'o'n its inner face with a'seat420'forthereceptionof the projection 42, and withan xtensionAZladaptedto lie behind the projection I 4 2'an'd to extend substantially into theplane ofytheibelt end 4|. The main body of thefbelt end M0 is receivedupon the seat 44 of the block'l3, while the extension 42 is receivedwithin theseat 420 of the block 430; and bolts ifi are p'assed' throughthe two blocks 43 and m Ifclaim my invention:

" 1. An edgeeactive belt compris ng a longitudin'allystressedmember'looped at one end of the 1t, extending the full length ofthe belt to a loop at the opposite end, and returning to form a secondloop at'the firstementioned end, a plurality of g b locks fof"trapezoidal cross section secured to said member at spaced points inthe length of said belt, means passing through at least one loop at eachend .of said belt to splice the ends of said belt, and block meansoperatively associated with said last-named means to reinforce thesplice.

2. A belt comprising a continuous strand arranged in a plurality ofsubstantially parallel runs joined by loops at the opposite ends of saidruns, means threaded through loops at one end of said belt and throughloops at the other end of said belt to form a splice, and meansoperatively associated with said last-named means to reiniorce saidsplice.

3. A belt comprising a continuous strand arranged in a plurality ofsubstantially parallel runs joined by loops at the opposite ends of saidruns, said loops lying in substantially parallel planes substantiallyperpendicular to the common plane of said runs, and means threadedthrough all of said loops to form a splice.

4. A belt comprising a continuous'strand arranged in a plurality ofsubstantially parallel runs joined by loops at the opposite ends of saidruns, said loops lying in substantially parallel planes substantiallyperpendicular to the common plane of said runs, means threaded throughall of said loops to form a splice, and means operatively associatedwith said last-named means to reinforce said splice.

5. A belt comprising a continuous strand arranged in a. plurality ofsubstantially parallel runs joined by loops at the opposite ends of saidruns, said loops lying in substantially parallel planes substantiallyperpendicular to the common plane of said runs, and the loops at one endof said belt being arranged in interdigitating registry with the loopsat the other end of said belt, and means threaded through all of saidloops to form a splice.

6. A belt comprising a continuous strand arranged in a plurality ofsubstantially parallel runs joined by loops at the opposite ends of saidruns, the loops at each end of said belt lying substantially in a commonplane parallel to the common plane of said runs, and a plurality ofpins, each passing through a loop at one end of said belt and a loop atthe other end of said belt to form a splicel s 7. A belt comprising acontinuous strand arranged in a plurality of substantially parallel runsjoined by loops at the opposite ends of said runs, the loops at each ofsaid belt lying substantially in a common plane parallel to the commonplane of said runs, and splice means comprising a. block carrying aplurality of spaced parallel pins, each of said pins passing through aloop at one end of said belt and a loop at the other end of said belt, amating block socketed to receive the projecting ends of said pins, andmeans securing said blocks together on Opposite sides of said belt.

8. An edge-active belt comprising a longitudinally stressed memberlooped at one end of the belt, extending the full length of the belt toa loop at the opposite end, and returning to form a second loop at thefirst-mentioned end, and ,a

plurality of blocks of trapezoidal cross section secured to said memberat spaced points in the length of said belt, certain of said blocksbeing provided with means passing through at least one loop at one endof said belt and with means passing through at least one loop at theother end of said belt to splice together said ends of said belt.

9. A belt comprising a continuous strand arranged in a pluralityofsubstantially parallel runs joined by loops at the opposite ends ofsaid runs, the loops at each end of said belt lying substantially in acommon plane parallel to the common plane of said runs, and splice meanscomprising a block carrying a plurality of spaced parallel pins, certainof said pins passing respectively through loops at one end of said beltand certain of said pins passing respectively through loops at the otherend of said belt, a mating block cooperating with said first-named blockto hold said pins in position, and means securing said blocks togetheron opposite sides of said belt.

10. A belt comprising a body made up of a plurality of substantiallyparallel runs of cord embedded in an envelope of binding material, aplurality of longitudinally-spaced transverse stiffener blocksassociated with said body, each of said blocks completely enveloping itsassociated section of belt body and being substantially incompressiblein a direction transverse to the length of said body, and a thin layerof relatively soft, high-friction, compressible material secured to thefriction surfaces of. each of said blocks.

WILLIAM R. PERRY.

